How to use the Pie Chart Maker
- 1. Type your dataAdd one slice per line as a label, a comma and a number.
- 2. Pick a styleChoose pie or donut and whether slices show percentages or values.
- 3. DownloadMake the chart, then save it as a PNG for slides or an SVG for print.
How the slice sizes are worked out
Each slice is its share of the total: share = value ÷ sum of all values × 100, and its angle is share × 3.6°. The chart starts at 12 o'clock and goes clockwise in the order you typed the lines.
Worked example with the default data: Rent 15000, Food 8000, Travel 4000 and Savings 13000 add up to 40,000. Rent is 15000 ÷ 40000 = 37.5% (a 135° slice), Food is 20%, Travel is 10% and Savings is 32.5%. The table under the chart shows the same numbers so you can paste them into a report.
When a pie chart is the right choice
- Parts of one whole. Budgets, market share, survey answers that add up to 100%.
- Few slices. Five or six slices read well. Past eight, a sorted bar chart is easier to compare.
- Big differences. People judge angles poorly, so two slices of 24% and 26% look the same. Show the percentage labels when values are close.
- Donut for a headline. The empty centre leaves room for a total in your slide design.
Values here must be positive. Negative numbers and zero cannot be shown as slices, so the tool asks you to fix them instead of guessing. Everything is drawn in your browser and nothing you type is uploaded.
Need other chart types? Use the histogram maker for spread of values or the box plot maker to compare groups.
Frequently asked questions
Can I paste data from Excel?
Yes. Copy two columns (label and value) from Excel or Google Sheets and paste them in. Tabs are treated as the separator.
Why does a small slice have no label?
Slices under about 4.5% are too thin for text, so their percentage appears only in the legend and the table.
Is the Pie Chart Maker free?
Yes, the Pie Chart Maker is free. The first time you make your first chart, you are asked for your name and WhatsApp number once. After that, this and every other Uncodemy tool opens straight away without the form.